JTable

Posted 2020-08-27 且穷且独立

final Table table = new Table(parent, SWT.NONE | SWT.FULL_SELECTION);
  final GridData gd = new GridData(SWT.LEFT, SWT.TOP, false, true);
  gd.heightHint = 100;
  table.setLayoutData(gd);
  table.setHeaderVisible(true);
  table.setLinesVisible(true);
  final TableColumn tcCondition = new TableColumn(table, SWT.None);
  final TableColumn tcUserValue = new TableColumn(table, SWT.None);
  final TableColumn tcUserColor = new TableColumn(table, SWT.None);
  tcCondition.setText("条件");
  tcCondition.setWidth(80);
  tcUserValue.setText("枚举值");
  tcUserValue.setWidth(80);
  tcUserColor.setText("颜色");
  tcUserColor.setWidth(80);
  table.addListener(SWT.MouseDoubleClick, new Listener() {
   int editColumnIndex = -1;
   @Override
   public void handleEvent(final Event e) {
    final Point point = new Point(e.x, e.y);
    final TableItem tableItem = table.getItem(point);
    if (tableItem == null) {
     return;
    }
    for (int i = 0; i < 3; i++) {
     final Rectangle r = tableItem.getBounds(i);
     if (r.contains(point)) {
      editColumnIndex = i;
      final TableEditor editor = new TableEditor(table);
      final Control oldEditor = editor.getEditor();
      if (oldEditor != null) {
       oldEditor.dispose();
      }
      final Text text = new Text(table, SWT.NONE);
      text.computeSize(SWT.DEFAULT, table.getItemHeight());
      editor.grabHorizontal = true;
      editor.minimumHeight = text.getSize().y;
      editor.minimumWidth = text.getSize().x;
      editor.setEditor(text, tableItem, editColumnIndex);
      text.setText(tableItem.getText(editColumnIndex));
      text.forceFocus();
      text.addModifyListener(new ModifyListener() {
       @Override
       public void modifyText(final ModifyEvent e) {
        editor.getItem().setText(editColumnIndex, text.getText());
       }
      });
      text.addFocusListener(new FocusListener() {
       @Override
       public void focusGained(final FocusEvent e) {
        // TODO Auto-generated method stub
       }
       @Override
       public void focusLost(final FocusEvent e) {
        text.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
        text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
       }
      });
     }
    }
   }
  });